1. Department of Environmental and Prevention Sciences, University of Ferrara, Ferrara, Italy
2. Oncologic Screening Unit, Ancona Healthcare Agency, Ancona, Italy
3. Department of Medicine and Surgery, University of Bologna, Bologna, Italy
4. Department of Biomedical Sciences and Public Health, University of the Marche Region, Ancona, Italy
5. The Daffodil Centre, University of Sydney, A Joint Venture with Cancer Council NSW, Sydney, Australia
6. Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Australia